How to convert several phone photos into one PDF
By the PdfDady team · Updated · 7 min read
To convert photos to a PDF, add them to an image-to-PDF converter, arrange them in page order, choose a page size and download. Each photo becomes one page. Our Image to PDF tool does this in your phone's browser, takes up to 50 photos at a time, and doesn't upload them.
That is the whole job when the photos are good. Most of this guide is about the parts that decide whether the PDF is accepted: the order, the page size, the file size, and how the photos were taken.
Photos to PDF, step by step
- Open Image to PDF on your phone.
- Add your photos from the gallery. JPG, PNG, WebP and iPhone HEIC photos are accepted, up to 25 MB each.
- Put them in order. Pages follow the order shown on screen. Use the move up and move down buttons, and remove any photo you added by mistake.
- Rotate any photo that is sideways. Each press turns it 90°.
- Choose the page size, orientation and margin (see the next section).
- Look at the live page previews. They show how each photo will sit on its page.
- Download the PDF, or open it in your browser to print.
You can add more photos at any point, so if you notice a missing page halfway through, take the photo and add it.
Which page settings to choose
| Setting | Choose this | When |
|---|---|---|
| Page size: A4 | Most of the time | Documents that will be printed, or uploaded to a form in India |
| Page size: Fit to image | No white border wanted | Sharing on screen, or photos that aren't of A4 paper |
| Page size: US Letter | Rarely | Only if the recipient specifically asks for Letter |
| Orientation: Auto | Usually | Each page follows its photo, so a landscape photo gets a landscape page |
| Margin: Small (10 mm) | Documents | Leaves a neat border and room for a printer's edges |
| Margin: None | Edge to edge | When you want the photo to fill as much of the page as possible |
A4 is 210 × 297 mm and is the standard paper size in India, so an A4 PDF prints without surprises at home or at a shop.
With Fit to image, the page takes the shape of the photo, with its long edge at 297 mm and no white border. It suits photos that are not A4-shaped, such as a long receipt.
Whatever you pick, a photo is never stretched or cropped. It is centred and scaled to fit, keeping its proportions. A photo that is not the same shape as the page will have white space on two sides, which is normal.
Take better photos first
A converter can't fix a bad photo. Two minutes here saves a rejected upload later.
- Use daylight. Stand near a window. Avoid a ceiling light directly overhead, because your hand and phone throw a shadow across the page.
- Lay the paper flat on a plain, darker surface, so the edges of the page are easy to see.
- Hold the phone parallel to the paper, directly above it, not at an angle.
- Fill the frame with the page. This tool does not crop, so whatever is around the paper (the table, your thumb) ends up in the PDF.
- Turn off the flash for glossy or laminated documents. It leaves a white glare patch over the text.
- Check each photo by zooming in on the smallest print before moving on. If you can't read it, the verifier can't either.
If the photos are of paper documents
Image to PDF places photos as they are. For a marksheet or certificate photographed on a table, that means the PDF shows the table too, and a page shot at an angle stays skewed.
Scan to PDF is built for that case. You drag four corners to the edges of the paper and the page is straightened to a flat rectangle. It also has a black and white document mode that turns shadows and grey paper white and keeps the text black, which makes a phone photo look much closer to a real scan.
A simple way to choose:
- Photos that are already clean, straight and tightly framed, or that are not documents at all (a site photo, a product picture): use Image to PDF.
- Photos of paper with background, tilt or shadows: use Scan to PDF.
Neither tool makes the text searchable. The PDF contains pictures of your pages; there is no text recognition (OCR).
Your phone may also have a scanner built in. On an iPhone, the Notes and Files apps both have a Scan Documents option that saves a PDF. On Android, the Google Drive app can scan with the camera and save the result as a PDF.
Keeping the file size under control
This catches almost everyone. A modern phone photo is often 3 to 5 MB. JPEG photos that don't need rotating are placed in the PDF with their original image data, with no re-compression, which is good for quality. It also means ten photos of 3 MB each make a PDF of about 30 MB.
Many upload boxes allow far less than that. Three ways to bring it down:
- Compress the PDF afterwards. Compress PDF can aim for a target size. Open the result and check the small print before you upload.
- Don't include pages nobody asked for. Four pages weigh less than seven.
- Use the black and white document look in Scan to PDF for text documents, instead of full-colour photos.
Check the size limit in your application notice before you start, not after the portal rejects the file.
Common problems and fixes
The pages are in the wrong order
Pages follow the order of the photos on screen, which is often the order you picked them in the gallery, not the order you took them. Reorder with the move up and move down buttons before downloading. If you have already made the PDF, you can fix it with the steps in how to rearrange PDF pages.
One page is sideways
Rotate that photo before creating the PDF. If the PDF is already made, see how to rotate PDF pages permanently.
The photo looks small on the page
The photo is being fitted onto an A4 page of a different shape, or the paper only fills part of the photo. Retake the photo closer, switch the margin to None, or use Fit to image.
I need to add these pages to an existing PDF
Make a PDF from the photos first, then join it to the other file with Merge PDF. The steps are in how to merge PDF files.
The form wants a photo, not a PDF
Read the instruction again. Passport-size photos and signatures are usually asked for as JPG images with their own size limits, while certificates and marksheets are asked for as PDF. Putting a passport photo inside a PDF won't be accepted where a JPG is expected.
Questions people ask
Does converting to PDF reduce photo quality?
Not for most photos. JPEGs that need no rotation are embedded with their original image data, and PNG images stay lossless. Photos that need turning, and other formats, are saved as high-quality JPEG. Images are never upscaled, and very large ones are capped at 600 DPI at their printed size.
Can I convert iPhone HEIC photos?
Yes. HEIC photos are accepted along with JPG, PNG and WebP.
How many photos can go into one PDF?
Up to 50, each up to 25 MB.
Does the PDF include my location from the photo?
Location data (EXIF/GPS) is removed from JPEGs placed in the PDF, so the file doesn't carry where the photo was taken.
Are my photos uploaded?
No. The PDF is made in your browser and the photos stay on your device.